def se(func):
    def inner(*args, **kwargs):
        print("start")
        res=func(*args, **kwargs)
        print("end")
        return res

    return inner


@se
def send_message(name, message):
    print(f"发送消息给{name}同学，消息内容是：{message}")


send_message("小美", "我喜欢你")
